گفتار درمانی و توانبخشی
پایگاه اطلاع رسانی گفتار
توان گستر
Paradoxical Vocal Fold Movement
What is PVFM?
Paradoxical Vocal Fold Movement (PVFM) is a voice
disorder in which the vocal folds behave in a normal fashion almost
all of the time, but, when an episode occurs, causes the vocal folds
to close when they should open, such as when breathing. PVFM can be
mistaken for asthma as it leads to wheezing and difficulty
breathing, sometimes to the point of requiring hospitalization.
What causes PVFM?
PVFM episodes may be triggered by:
- Shouting or coughing
- Physical exercise
- Acid reflux
- Breathing cold air
- Irritants such as smoke or pollen
- Psychosocial issues
- Neurological issues
How is PVFM diagnosed?
A multidisciplinary approach, including medical,
psychological, and behavioral assessments is an effective way of
diagnosing PVFM. The diversity of symptoms and inconsistency of
episodes make diagnosis difficult. A review of the individual's
medical history and contributing factors, such as smoking or
medications, is necessary, as is a laryngeal evaluation using
endoscopy (passing a scope into the pharynx to view the vocal
folds). A voice evaluation by a speech-language pathologist also
aids in diagnosing this disorder.
How is PVFM treated?
PVFM is treated both medically and behaviorally. Medical
intervention addresses any physical and/or psychological factors,
while behavioral intervention with a speech-language pathologist
addresses vocal exercises, relaxation techniques, and proper
respiratory support for speech. The goal of intervention is to make
the individual aware of PVFM triggers so they can avoid them and to
teach the individual how to handle an episode when it occurs